a5091c58c0
A swarm has one store, so running it is a fact about this machine and belongs beside the other deploy.* toggles rather than in the namespace every host agrees on. Attrset with an enable, not a bare bool, so a second deployment decision has somewhere to go. Asserted from swarm.enableRequiredServices alongside the other once-per-swarm services, and asserted as a mkDefault -- which is what keeps *where* the store runs a separate question from *that* it runs. Set it directly to put the store on a host of its own; a hive that does not run it is a client either way, reaching it by name. Two descriptions in the file still narrated the old swarm.* layout as something that used to be true, and the queue's claimed it belongs on the shared-services host. Both now say what holds.
100 lines
4.7 KiB
Nix
100 lines
4.7 KiB
Nix
# "The swarm-wide services run HERE."
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#
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# A swarm has one forge, one matrix, one SSO. This says this host is
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# where they live, and asserts the per-service `enable`s that follow —
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# the same mode-not-default shape as ./local-defaults.nix, one tier down.
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#
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# Only the *optional* services derive: matrix and authelia. The forge has
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# no `enable` to assert, because it is not optional — it is the canonical
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# store for the meta flake and every agent's config repo, so it deploys
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# with hyperhive itself.
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{
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lib,
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config,
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...
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}:
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let
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swarmCfg = config.services.hyperhive.swarm;
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in
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{
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options.services.hyperhive.swarm.enableRequiredServices = lib.mkOption {
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type = lib.types.bool;
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default = false;
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example = true;
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description = ''
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Host the swarm's shared services on this hive. The services that
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exist once per swarm rather than once per hive and are *optional*
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— the matrix homeserver, the SSO provider, the queue, the metrics
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and log stores — have their toggle asserted from this, so a
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swarm's service host is declared in one place.
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Those toggles live in two namespaces and the split is deliberate:
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{option}`services.hyperhive.deploy.*` for "does THIS host run it",
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`swarm.*.enable` for the ones not yet moved. See ./deploy.nix.
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The forge is swarm-wide too but has nothing to assert: it is the
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canonical store for the meta flake and every agent's config repo,
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so it deploys with hyperhive itself and is not optional.
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`services.hyperhive.enableAllLocalDefaults` turns this on as part
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of the all-on-one-box mode. Set it directly to run the swarm's
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services on a host that is not otherwise all-local — a dedicated
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services box with hives elsewhere is exactly that shape.
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With it off, this hive is a *client* of those services: it still
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configures how to reach them, it just doesn't run them.
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'';
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};
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# Same precedence reasoning as ./local-defaults.nix: fills in for an
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# operator who hasn't spoken, yields to one who has.
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#
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# Everything derives under `deploy.*` now, because "does THIS host run
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# it" is a per-host decision and `swarm.*` has to be identical on every
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# host. Same switch, same rule, one attribute path.
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config.services.hyperhive.deploy.matrix.enable = lib.mkDefault swarmCfg.enableRequiredServices;
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# The collector that feeds the pair above (note: no `swarm.` prefix,
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# this is ./otel.nix's existing per-hive option).
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config.services.hyperhive.otel.enable = lib.mkDefault swarmCfg.enableRequiredServices;
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# The rest of the shared services, deriving from the same switch as the
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# `swarm.*` ones above. They read differently only because "does THIS
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# host run it" lives in `deploy.*` (./deploy.nix) — `swarm.*` has to be
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# identical on every host, and these are exactly the values that must
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# differ.
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#
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# authelia: a swarm has one SSO provider, and this says it lives here.
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# With it off the hive is a *client* — `swarm.authelia.url` still points
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# at whoever runs it.
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config.services.hyperhive.deploy.authelia.enable = lib.mkDefault swarmCfg.enableRequiredServices;
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# The queue. Same rule: once per swarm, optional.
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config.services.hyperhive.deploy.nats.enable = lib.mkDefault swarmCfg.enableRequiredServices;
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# The swarm collector that feeds the metrics pair, and the only tier
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# holding the upstream credential. ⚠️ NOT the per-hive collector below,
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# which every hive runs.
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config.services.hyperhive.deploy.swarm-otel.enable = lib.mkDefault swarmCfg.enableRequiredServices;
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# The metrics pair, deriving together on purpose: a store with no UI is
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# unreadable and a UI with no store is empty, so there is no sensible
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# deployment that takes one and not the other from this switch. An
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# operator who wants exactly one still sets it directly, which
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# `mkDefault` allows.
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config.services.hyperhive.deploy.victoriametrics.enable =
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lib.mkDefault swarmCfg.enableRequiredServices;
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config.services.hyperhive.deploy.grafana.enable = lib.mkDefault swarmCfg.enableRequiredServices;
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# The log store, from the same switch for the same reason as the rest: a
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# hive that is not the service host is a *client* of it, not a second one.
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config.services.hyperhive.deploy.victorialogs.enable =
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lib.mkDefault swarmCfg.enableRequiredServices;
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# The secret store. Once per swarm and optional, so it belongs to the
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# same switch: a hive that does not run it is a *client*, reading its
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# own secrets from whoever does. `mkDefault` is what keeps the store
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# placeable on a host of its own — it can be set directly here and
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# turned off wherever this switch happens to be on.
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config.services.hyperhive.deploy.bao.enable = lib.mkDefault swarmCfg.enableRequiredServices;
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}
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